Question

1.1.37
Let f(x) = x² - 9 and g(x) = x4. Simplify or evaluate the function g(f(u)).
Find g(f(u)). Do not expand your answer.
g(f(u)) =

Answer 1

64 is the correct answer.

Answer 2

Step-by-step explanation:

Let u represent x.

g[f(u)]

= g(u² - 9)

= (u² - 9)⁴.

The answer is (u² - 9)⁴.